Document WG2 N4738 proposes to encode 472 Khitan Small Script characters in ISO/IEC 10646 and Unicode, based on the 472 characters identified by West, Zaytsev & Everson in document WG2 N4725R Table 5. Questions have been raised about twenty-nine of these characters, as they may not all be attested in primary sources such as epitaph inscriptions. This document provides additional evidence relating to these twenty-nine characters, and discusses whether they should be encoded or not.